GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.

# Local preconfigure fragment for sysdeps/arm

case "$machine" in

arm*)

  # If the compiler enables unwind tables by default, this causes

  # problems with undefined symbols in -nostdlib link tests.  To

  # avoid this, add -fno-unwind-tables here and remove it in

  # sysdeps/arm/configure.ac after those tests have been run.

  if test "${CFLAGS+set}" != "set"; then

    CFLAGS="-g -O2"

  fi

  CFLAGS="$CFLAGS -fno-unwind-tables"

  base_machine=arm

  # Lets ask the compiler which ARM family we've got

  # Unfortunately it doesn't define any flags for implementations

  # that you might pass to -mcpu or -mtune

  # Note if you add patterns here you must ensure that

  # an appropriate directory exists in sysdeps/arm

  archcppflag=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null |

    sed -n 's/^#define \(__ARM_ARCH_[0-9].*__\) .*$/\1/p'`

  case "x$archcppflag" in

  x__ARM_ARCH_[89]*__)

    machine=armv7

    AC_MSG_NOTICE([Found compiler is configured for something newer than v7 - using v7])

    ;;

  x__ARM_ARCH_7A__)

    machine=armv7

    AC_MSG_NOTICE([Found compiler is configured for $machine])

    ;;

  x__ARM_ARCH_6T2__)

    machine=armv6t2

    AC_MSG_NOTICE([Found compiler is configured for $machine])

    ;;

  x__ARM_ARCH_6*__)

    machine=armv6

    AC_MSG_NOTICE([Found compiler is configured for $machine])

    ;;

  *)

    machine=arm

    AC_MSG_WARN([arm/preconfigure: Did not find ARM architecture type; using default])

    ;;

  esac

  machine=arm/$machine

  with_fp_cond="!defined __SOFTFP__"

esac